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Nokia 4A0-107 Practice Test - Questions Answers, Page 7

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Which of the following criteria is an IP multi-field classification option?

A.
prec
A.
prec
Answers
B.
lsp-exp
B.
lsp-exp
Answers
C.
src-ip
C.
src-ip
Answers
D.
do1p
D.
do1p
Answers
Suggested answer: C

The SAP-ingress policy shown below is applied properly to a Nokia 7750 SR. A traffic stream is received from an IP address of 192.168.2.200 with DSCP and dot1p set to EF and 4, respectively. Which forwarding class and priority level is used for this traffic stream?

A.
FC H1, high
A.
FC H1, high
Answers
B.
FCH1, low
B.
FCH1, low
Answers
C.
FCAF, high
C.
FCAF, high
Answers
D.
FCAF, low
D.
FCAF, low
Answers
Suggested answer: A

Which of the following statements about a SAP-ingress policy is FALSE?

A.
It maps customer traffic to forwarding classes on ingress.
A.
It maps customer traffic to forwarding classes on ingress.
Answers
B.
It can use customer QoS markings to do the mapping.
B.
It can use customer QoS markings to do the mapping.
Answers
C.
The default SAP-ingress policy classifies all traffic into FC ''be'' with low priority.
C.
The default SAP-ingress policy classifies all traffic into FC ''be'' with low priority.
Answers
D.
It serves the classification, queuing, and marking functions of QoS but does not serve scheduling
D.
It serves the classification, queuing, and marking functions of QoS but does not serve scheduling
Answers
Suggested answer: D

Which of the following statements about network QoS policies is FALSE?

A.
Classification rules must specify both an FC and a profile for the packets.
A.
Classification rules must specify both an FC and a profile for the packets.
Answers
B.
A network policy is applied at a physical port.
B.
A network policy is applied at a physical port.
Answers
C.
Classification is performed with behavior-aggregate statements only.
C.
Classification is performed with behavior-aggregate statements only.
Answers
D.
Match criteria can be chosen from dot1p, DSCP, and EXP fields in the packet.
D.
Match criteria can be chosen from dot1p, DSCP, and EXP fields in the packet.
Answers
Suggested answer: C

The network QoS policy shown below is applied properly to a Nokia 7750 SR acting as a transit Label Switch Router (LSR) for a given MPLS tunnel. A packet is received inside the MPLS tunnel with EXP=4, dot1p=4, and DSCP=AF. Which forwarding class is assigned to this packet?

A.
L2
A.
L2
Answers
B.
H1
B.
H1
Answers
C.
AF
C.
AF
Answers
D.
BE
D.
BE
Answers
Suggested answer: B

Which parameter can be configured in a network ingress QoS policy?

A.
The priority (low/high) to be assigned to the packets.
A.
The priority (low/high) to be assigned to the packets.
Answers
B.
The profile (in/out) to be assigned to the packets.
B.
The profile (in/out) to be assigned to the packets.
Answers
C.
The queues to be assigned to the forwarding classes.
C.
The queues to be assigned to the forwarding classes.
Answers
D.
The markings to be marked on the packets.
D.
The markings to be marked on the packets.
Answers
Suggested answer: B

Policing improves bandwidth utilization by using buffering to absorb high bursts of traffic.

A.
TRUE
A.
TRUE
Answers
B.
FALSE
B.
FALSE
Answers
Suggested answer: B

On the Nokia 7750 SR, which of the following QoS-related policies can be configured on a SAP? (Choose three)

A.
The slope-policy
A.
The slope-policy
Answers
B.
The SAP-ingress policy
B.
The SAP-ingress policy
Answers
C.
The SAP-egress policy
C.
The SAP-egress policy
Answers
D.
The network-queue policy
D.
The network-queue policy
Answers
E.
The scheduler-policy
E.
The scheduler-policy
Answers
Suggested answer: B, C, E

Which of the following statements BEST describes where shaping mechanisms should be applied?

A.
On all ports on the Nokia 7750 SR.
A.
On all ports on the Nokia 7750 SR.
Answers
B.
At the junction of high-speed to low-speed links or at places of traffic aggregation.
B.
At the junction of high-speed to low-speed links or at places of traffic aggregation.
Answers
C.
At the junction of low-speed to high-speed links or at places of traffic aggregation.
C.
At the junction of low-speed to high-speed links or at places of traffic aggregation.
Answers
D.
On low-speed WAN links.
D.
On low-speed WAN links.
Answers
E.
Nowhere. Shaping is only performed in hardware and serviced in a round-robin.
E.
Nowhere. Shaping is only performed in hardware and serviced in a round-robin.
Answers
Suggested answer: B

When using an egress port scheduler, on which scheduling loop are orphaned queues serviced?

A.
Level 8 within CIR.
A.
Level 8 within CIR.
Answers
B.
Level 8 between CIR and PIR.
B.
Level 8 between CIR and PIR.
Answers
C.
Level 8, once all PIR is serviced.
C.
Level 8, once all PIR is serviced.
Answers
D.
Level 1 within CIR.
D.
Level 1 within CIR.
Answers
E.
Level 1 between CIR and PIR.
E.
Level 1 between CIR and PIR.
Answers
F.
Level 1, once all PIR is serviced.
F.
Level 1, once all PIR is serviced.
Answers
Suggested answer: C
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